Journal of Evolutionary Biology
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jevbio.bsky.social
Journal of Evolutionary Biology
@jevbio.bsky.social
#societyjournal (ESEB), covering #evolution across all organisms

#genetics #genomics #selection #lifehistory #evodevo #popgen #theory #speciation #morphometrics #phylogenetics #phylogeography

https://academic.oup.com/jeb
http://jevbio.net
Sea #otters have undergone distinctive evolutionary changes in the offspring size–number trade-off within the #Mustelidae. The changes involve larger and fewer offspring and more investment in offspring size than expected:

doi.org/10.1093/jeb/...

Harano and Kutsukake 2025
November 11, 2025 at 10:44 AM
Two chloroplast haplogroups are found in Quercus suber with selection detected in chloroplast codon sites. Polymorphism is segregated between the two haplogroups, suggesting that balancing selection preserves them:

doi.org/10.1093/jeb/...

de Sousa et al. 2025 @octaviospaulo.bsky.social
Natural selection preserves trans-specific chloroplast diversity in a Mediterranean evergreen oak
Abstract. Cork oak (Quercus suber) is an ecologically and economically important Western Mediterranean tree species in severe risk of decline due to aggrav
doi.org
November 11, 2025 at 10:38 AM
By combining mark-recapture and genetic parentage data from wild #lizards, we show that the offspring of older parents do not have lower survival or reproductive success than the offspring of younger parents:

doi.org/10.1093/jeb/...

Crain et al. 2025
Parental age effects on offspring fitness in a wild population of a short-lived reptile
Abstract. As organisms age, the fitness of the offspring they produce can decline, which is often attributed to parental senescence. However, few studies h
doi.org
November 11, 2025 at 10:34 AM
Evolutionary biologists who leave #academia-- where do they go? How do they get there? What do they do? Read and find out!

doi.org/10.1093/jeb/...

Betancourt et al. 2025
a penguin is sticking his head out of a hole next to a job application
ALT: a penguin is sticking his head out of a hole next to a job application
media.tenor.com
November 11, 2025 at 10:32 AM
Reposted by Journal of Evolutionary Biology
📣CALL FOR PAPERS!

Upcoming SPECIAL ISSUE: Evolution at species range edges

Guest Edited by Shengman Liu, John Pannell and Sophie Karrenberg

More information here: academic.oup.com/jeb/pages/ca...
October 8, 2025 at 2:53 PM
Fighter ant males show canalized weapon development but extreme variation in other morphological traits, highlighting how #sexualselection shapes #phenotypicevolution:

doi.org/10.1093/jeb/...

Neupert et al @uniregensburg.bsky.social
Canalized weapon development but high levels of overall phenotypic variation in an evolutionarily novel ant male morph
Abstract. Sexual selection is responsible for the evolution of exaggerated morphologies in males of many animal species. In extreme cases, this has led to
doi.org
November 6, 2025 at 6:17 PM
How to use and interpret the #adaptationinertia framework of #phylogenetic comparative methods based on the Ornstein-Uhlenbeck process to study adaptation:

doi.org/10.1093/jeb/...

Pienaar et al. 2025
Phylogenetic comparative methods for studying adaptation: the adaptation-inertia framework
Abstract. Phylogenetic comparative methods are a major tool for evaluating macroevolutionary hypotheses. Methods based on the mean-reverting stochastic Orn
doi.org
November 6, 2025 at 6:15 PM
In some species, #mitochondria have lost functions: from specific complexes to the ability to produce #ATP (and more!). We examine the evolutionary pathways of this reduction, from yeast and mistletoe to parasite "MROs":

doi.org/10.1093/jeb/...

@mitomaths.bsky.social et al. 2025
Convergent pathways of reductive mitochondrial evolution characterized with hypercubic inference
Abstract. For a striking example of mitochondrial behaviour beyond adenosine triphosphate (ATP) generation, consider mitochondrion-related organelles (MROs
doi.org
November 6, 2025 at 6:12 PM
A #transcriptomic study shows that single nucleotide polymorphisms in #6Pgdh - a metabolic gene involved in #sexualselection and conflict in bulb mite, Rhizoglyphus robini - can be associated with genome wide gene expression differences:

doi.org/10.1093/jeb/...

Plesnar-Bielak et al. 2025
Polymorphism in a metabolic gene involved in sexual selection shapes global gene expression profiles in the bulb mite males
Abstract. Uncovering the genetic basis of sexually selected traits and traits involved in sexual conflict is a key to understand the association between se
doi.org
November 6, 2025 at 6:07 PM
The genetic basis of #flight capacity is more strongly linked to nervous system processes than to #wingmorphology:

doi.org/10.1093/jeb/...

Flaibani et al. #Evolution Lab (IEGEBA-CONICET) #drosophila
The relationship between morphology and flight in Drosophila: a first approach to its genetic basis
Abstract. Flight is a crucial activity for winged insects, involving diverse behaviours, and wing morphology has often been proposed as a key factor influe
doi.org
November 6, 2025 at 6:01 PM
Using phylogenetically informed sampling of 98 genera, we show that reductions of the ant stinging apparatus are associated with shifts in diet and foraging facilitating ecological transitions and diversification:

doi.org/10.1093/jeb/...

Casadei-Ferreira et al. 2025
Evolutionary simplification and functional shifts of the ant stinger
Abstract. Morphological evolution reflects a balance between the emergence of novel traits and the reduction or loss of existing traits, and both of these
doi.org
November 6, 2025 at 5:57 PM
The genetical evolution of social preferences: where the categorical imperatives of Hamilton, Kant, and Nash meet:

doi.org/10.1093/jeb/...
The genetical evolution of social preferences: where the categorical imperatives of Hamilton, Kant, and Nash meet
Abstract. This paper models the genetical evolution of individual behaviour rules that guide the choice of strategies in pairwise assortative interactions
doi.org
November 6, 2025 at 5:54 PM
A Kronholm Lab evolution experiment with #yeast reveals that constant high temperature imposes a stronger #selection pressure than fluctuating temperatures, and that population size does not seem to influence #fitness #trade-offs:

doi.org/10.1093/jeb/...

Räsänen et al. 2025
Adaptations and maladaptations due to evolution at constant, but not at fluctuating temperatures
Abstract. Climate change exposes populations to more frequent periods of extreme temperatures and faster temperature fluctuations. Theoretical models sugge
doi.org
October 24, 2025 at 2:53 PM
Why do single-celled organisms commit suicide?

Our latest research reveals that it is not a mystery, but a form of cooperation. Programmed cell death (PCD) can strengthen endosymbiosis between host and symbiont, thereby helping clones:

doi.org/10.1093/jeb/...

Sathe and Becks 2025
Reciprocal effects of programmed cell death on fitness in unicellular endosymbiotic Chlorella and its ciliate host
Abstract. Programmed cell death (PCD), the genetically controlled active cellular suicide mechanism in multicellular organisms, also exists in unicellular
doi.org
October 24, 2025 at 2:51 PM
Combining genomic and neuroanatomical data shows that #Heliconiini olfactory systems vary in their #olfactory receptor diversity and investment in individual brain structures, but are developmentally plastic in responsive to environmental conditions:

doi.org/10.1093/jeb/...

Yi Peng et al. 2025
Evolution of the olfactory system during the radiation of Heliconiini butterflies
Abstract. Sensory system evolution plays a crucial role in shaping species’ interactions with their environment, yet the extent to which olfactory system d
doi.org
October 24, 2025 at 2:49 PM
Major histocompatibility complex (MHC) modulation of Batrachochytrium dendrobatidis and Ranavirus infections in amphibians:

doi.org/10.1093/jeb/...

Cortazar-Chinarro et al. 2025
Major histocompatibility complex modulation of Batrachochytrium dendrobatidis and Ranavirus infections in amphibians
Abstract. Genetic variation in immune genes is an important component of genetic diversity. The genes in the major histocompatibility complex (MHC) provide
doi.org
October 24, 2025 at 2:47 PM
Tropical rainforest #fruitflies show limited capacity for remating, even though successive matings do not reduce offspring quality:

doi.org/10.1093/jeb/...

Saxon et al. 2025
Decline in offspring quantity but not quality from successive matings in male rainforest Drosophila, with no evidence for genetic divergence in male mating behaviour along elevational and density grad...
Abstract. Fertilisation success is a major component of male fitness, meaning males should capitalise on all opportunities for mating. However, other sourc
doi.org
October 24, 2025 at 2:44 PM
Dumas et al. used long-term data on Alpine #swifts, traditionally described as monomorphic, to test for temporal changes in sexual dimorphism (SD) and allometry. They found small but persistent SD, temporal changes in SD, and negative allometric scaling in both sexes:

doi.org/10.1093/jeb/...
Temporal changes in sex-specific cryptic sexual dimorphism and allometric scaling in the long-lived Alpine swift Tachymarptis melba
Abstract. Morphological differences between the sexes are frequently reported in wild populations, which can extend beyond overall body size and result in
doi.org
October 24, 2025 at 2:42 PM
How do multidimensionally selected traits respond to rapid change? Our study shows the importance of examining #plasticity under complex environmental contexts and suggests a role of social dynamics in the development of trait diversity in nature:

doi.org/10.1093/jeb/...

Puleo et al. 2025
Social environment shapes male colour development in Trinidadian guppies
Abstract. Plasticity plays an important role in species persistence under environmental change. Morphological traits are well known to respond to various e
doi.org
October 24, 2025 at 2:40 PM
Simple maternal effect animal models may provide biased estimates of additive genetic and maternal variation:

doi.org/10.1093/jeb/...

@joelpick.bsky.social et al. 2025
October 24, 2025 at 2:38 PM
Sperm length varies enormously, with some sperm longer than the males that produce them. Understanding this variation often requires controlling for mean sperm length, but based on our assessment, the current methods used for this are often wrong:

doi.org/10.1093/jeb/...

Hosken et al. 2025
Validate User
doi.org
October 24, 2025 at 2:36 PM
Reposted by Journal of Evolutionary Biology
Do you have something to say about evolutionary biology? Consider a Review or Target Review at @jevbio.bsky.social ! Target reviews are an especially fun way to express your opinion, and then get your friends and frenemies to converse with you on that topic.
bsky.app/profile/jevb...
Have you recently read about a particular field in depth? Perhaps you have just finished your PhD thesis?

@jevbio.bsky.social is seeking Review Articles!

Find out more about Reviews and Target Reviews at JEB here:

academic.oup.com/jeb/pages/re...
October 23, 2025 at 6:50 PM
Reposted by Journal of Evolutionary Biology
Very excited and honored to have my photo featured in the latest issue of the Journal of Evolutionary Biology! 🐸

@eseb.bsky.social @jevbio.bsky.social

If you'd like to read more about the research:
doi.org/10.1093/jeb/...
October 23, 2025 at 8:40 PM
Have you recently read about a particular field in depth? Perhaps you have just finished your PhD thesis?

@jevbio.bsky.social is seeking Review Articles!

Find out more about Reviews and Target Reviews at JEB here:

academic.oup.com/jeb/pages/re...
October 23, 2025 at 4:38 PM
Reposted by Journal of Evolutionary Biology
Continuing our series on difficult comparative models - and how to address them properly - we’re happy to showcase another study, this time in @jevbio.bsky.social academic.oup.com/jeb/advance-... We will guide you through a series of increasingly complex models, from binary, through ordered to
Promoting the use of phylogenetic multinomial generalised mixed-effects model to understand the evolution of discrete traits
Abstract. Phylogenetic comparative methods (PCMs) are fundamental tools for understanding trait evolution across species. While linear models are widely us
academic.oup.com
October 11, 2025 at 10:08 PM